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Abstract
Depolarized light scattering spectra of fluid CO2 are studied in a wide range of temperature and density. At ρ = 501 amagat and T = 263 K, both time correlation function and spectral moments compare well with the molecular dynamics results obtained in the site-site model of induced interactions. The evolution of the normalized second moment is analysed. At low density induced and rotational distinct contributions have been calculated in the centre-centre model using different potential models. The inclusion of quadrupolar interactions in the potential model seems to be important in reproducing the experimental second moment behaviour. Mean square torques, derived from the fourth spectral moments, are discussed and compared with computer results.
Work partially supported by GNSM (CNR) and MPI.
Work partially supported by GNSM (CNR) and MPI.
Notes
Work partially supported by GNSM (CNR) and MPI.